| 美国森林健康状况 |
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| 引用本文： | 许传德.美国森林健康状况[J].绿色中国(A版),2005(16):58-60. |
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| 作者姓名： | 许传德 |
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| 作者单位： | 国家林业局森林资源监督管理办公室 |
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| 摘 要： | 文章介绍了美国近年来的森林健康状况,指出2000～2002年是50年来美国森林火灾最严重的时期。同时,昆虫和病原体非自然传入也给美国造成了重大损失,乡虫害虫爆发生也是造成其森林危机的一个重要因素;南部阿巴拉契亚山脉的生态系统受到扰乱甚至由此出现了一个新的森林类型。尽管问题多多,但也取得了一定的成果。2002年布什总统签署了《健康森林执行规划》,与《国家森林防火规划》等形成一个森林恢复项目。
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| 关 键 词： | 美国 森林健康 |
the Status of American Forest Health |
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| Authors: | Xu Chuande |
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| Abstract: | The paper introduces the status of American forest health. It points out the most serious period on forest fire in recent 50 years is from 2000 to 2002. In the meanwhile, insects and diseases non-naturally introduced also caused great loss to USA, indigenous insects breaking out is another factor to give forest crises and the eco-system of its South even comes into being a new type of forest. However, USA still gets some achievements, such as the Healthy Forest Executive Planning done by Bush in 2002, with American Forest Fireproofing Planning, forming a forest restoration project. |
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| Keywords: | America forest health |
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